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公开(公告)号：US09491065B2
公开(公告)日：2016-11-08
申请号：US14014735
申请日：2013-08-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bing Chen , Qingpeng Xie , Lina Sun
CPC classification number: H04L41/5067 , H04L41/5038 , H04L65/80
Abstract: The present invention discloses a method for measuring user quality of experience QoE, where the method includes the following steps: receiving event information sent by a receiving end, where the event information includes condition information for determining a cause for shortage of valid media data in a buffer of the receiving end; determining, according to the condition information, whether the shortage of the valid media data in the buffer of the receiving end is caused by a service system or caused by a user's action; and measuring QoE decrease degrees according to different causes for the shortage of the valid media data in the buffer, respectively.
Abstract translation: 本发明公开了一种用于测量用户体验质量QoE的方法，其中所述方法包括以下步骤：接收由接收端发送的事件信息，其中所述事件信息包括用于确定有缺陷的媒体数据的原因的条件信息 接收端的缓冲区; 根据条件信息确定接收端的缓冲器中的有效媒体数据的不足是由服务系统引起还是由用户的动作引起的; 并根据缓冲区中有效媒体数据不足的不同原因测量QoE减小度。
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公开(公告)号：US20150117653A1
公开(公告)日：2015-04-30
申请号：US14586052
申请日：2014-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shan Gao , Lina Sun , Fuzheng Yang
IPC: G10L25/00
CPC classification number: G10L25/00 , G10L25/69 , H04L41/5067 , H04L41/509 , H04L43/0829
Abstract: Embodiments of the present invention provide a method and an apparatus for evaluating audio stream quality, where the method for evaluating audio stream quality includes: determining at least one non-silence audio data packet in a to-be-evaluated audio stream, where the to-be-evaluated audio stream includes at least one non-silence audio data packet, and each non-silence audio data packet includes at least one non-silence audio frame; and evaluating the at least one non-silence audio data packet in the to-be-evaluated audio stream to generate audio quality evaluation information. The method and the apparatus for evaluating audio stream quality provided by the embodiments of the present invention can avoid impact of a silence part on evaluation of audio quality, thereby improving accuracy of evaluating audio stream quality.
Abstract translation: 本发明的实施例提供了一种用于评估音频流质量的方法和装置，其中用于评估音频流质量的方法包括：确定待评估音频流中的至少一个非静音音频数据分组，其中， 被评估的音频流包括至少一个非静音音频数据分组，并且每个非静音音频数据分组包括至少一个非静音音频帧; 以及评估待评估音频流中的至少一个非静音音频数据分组以产生音频质量评估信息。 由本发明的实施例提供的用于评估音频流质量的方法和装置可以避免静音部分对音频质量评估的影响，从而提高评估音频流质量的准确性。
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公开(公告)号：US20140328198A1
公开(公告)日：2014-11-06
申请号：US14331611
申请日：2014-07-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shan Gao , Lina Sun , Qingpeng Xie
CPC classification number: H04L43/0835 , H04N17/00 , H04N17/02
Abstract: A video quality assessment method and a video quality assessment apparatus are provided. The method includes: acquiring parameter information of video data, where the parameter information includes a bit rate, a frame rate, and packet information; performing calculation according to the bit rate or the frame rate to obtain benchmark video quality of the video data; calculating the number of successively lost packets according to the packet information, and calculating the number of effective packet loss times; performing calculation according to the number of effective packet loss times to obtain video packet loss and distortion quality of the video data; and performing calculation according to the benchmark video quality and the video packet loss and distortion quality to obtain final video quality. Using the number of effective packet loss times can accurately assess videos more effectively and reduce algorithm complexity.
Abstract translation: 提供视频质量评估方法和视频质量评估装置。 该方法包括：获取视频数据的参数信息，其中参数信息包括比特率，帧速率和分组信息; 根据比特率或帧速率进行计算，以获得视频数据的基准视频质量; 根据分组信息计算连续丢失分组数，计算有效分组丢失次数; 根据有效分组丢失次数进行计算，获得视频数据丢失和视频数据的失真质量; 并根据基准视频质量和视频分组丢失和失真质量进行计算，以获得最终的视频质量。 使用有效数据包丢失次数可以更有效地准确评估视频，降低算法复杂度。
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公开(公告)号：US10419302B2
公开(公告)日：2019-09-17
申请号：US15258840
申请日：2016-09-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bing Chen , Qingpeng Xie , Lina Sun
Abstract: The present invention discloses a method for measuring user quality of experience QoE, where the method includes the following steps: receiving event information sent by a receiving end, where the event information includes condition information for determining a cause for shortage of valid media data in a buffer of the receiving end; determining, according to the condition information, whether the shortage of the valid media data in the buffer of the receiving end is caused by a service system or caused by a user's action; and measuring QoE decrease degrees according to different causes for the shortage of the valid media data in the buffer, respectively. In the method for measuring QoE according to embodiments of the present invention, shortage of valid media data in a buffer of a receiving end caused by a service system problem and shortage of valid media data in the buffer of the receiving end caused by a user's action are distinguished, and QoE decrease degrees are measured according to different causes for the shortage of the valid media data in the buffer, respectively, so that QoE is measured more accurately and more objectively, and network resources can be used properly.
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公开(公告)号：US09774855B2
公开(公告)日：2017-09-26
申请号：US14751373
申请日：2015-06-26
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/124 , H04N17/00 , H04N19/85 , H04N19/196 , H04N19/14 , H04N19/154 , H04N19/174
CPC classification number: H04N19/124 , H04N17/004 , H04N19/14 , H04N19/154 , H04N19/174 , H04N19/197 , H04N19/85
Abstract: A method and a device for assessing video encoding quality. The method includes: acquiring a quantization parameter of a slice of a video frame and a quantity of bytes per pixel of the slice of the video frame of the video stream; determining complexity of content of the video according to the quantity of bytes per pixel of the slice of the video frame of the video stream; and predicting the video encoding quality according to the complexity of content of the video and the quantization parameter of the video. In the present invention, the complexity of content of the video is also considered in predicting the video encoding quality. Therefore, encoding quality predicted by a model that is obtained by considering the complexity of content of the video better satisfies subjective feelings of human eyes, thereby improving accuracy of prediction.
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Patent Agency Ranking
公开(公告)号：US09654770B2
公开(公告)日：2017-05-16
申请号：US14518164
申请日：2014-10-20
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Shan Gao , Lina Sun , Qingpeng Xie
CPC classification number: H04N17/004 , H04N17/02 , H04N19/89 , H04N21/23418 , H04N21/44008
Abstract: In a method for evaluating media quality, media reference quality and rebuffering event distortion quality are obtained, final media quality are determined according to the obtained media reference quality and rebuffering event distortion quality, where a parameter of the rebuffering event distortion quality includes at least one of the following: the number of rebuffering events, a duration of the rebuffering event, a multiple rebuffering event interaction impact parameter, initial media quality, and a factor describing media content complexity. When media quality is calculated, impact of the multiple rebuffering event interaction impact parameter, the initial media quality, and the factor describing media content complexity on the media quality is considered, thereby making a media quality evaluation result more accurate.
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17.发明授权Frame type detection and frame size detection methods and apparatuses for video stream 有权视频流的帧类型检测和帧大小检测方法和装置公开(公告)号：US09571862B2
公开(公告)日：2017-02-14
申请号：US14469953
申请日：2014-08-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04N7/12 , H04N19/89 , H04N17/00 , H04N19/115 , H04N19/61 , H04N19/103 , H04N19/85 , H04N21/44 , H04N21/6437 , H04L12/26
CPC classification number: H04N19/89 , H04L43/0835 , H04N17/004 , H04N19/103 , H04N19/115 , H04N19/61 , H04N19/85 , H04N21/44008 , H04N21/6437
Abstract: Embodiments of the present invention provide frame type detection and frame size detection methods and apparatuses for a video stream. The video frame type detection method includes: obtaining a size of a current video frame; obtaining a change feature value of the current video frame; obtaining an I-frame threshold of the current video frame; and determining whether the previous first video frame is an I frame according to the change feature value of the current video frame and a change feature value of the previous first video frame, the I-frame threshold of the current video frame, and the size of the current video frame, the size of the previous first video frame, and a size of a previous second video frame. The present invention provides a complete and effective frame type detection method; in addition, impact of a video frame rate is fully considered.
Abstract translation: 本发明的实施例提供了用于视频流的帧类型检测和帧大小检测方法和装置。 视频帧类型检测方法包括：获得当前视频帧的大小; 获取当前视频帧的改变特征值; 获得当前视频帧的I帧阈值; 以及根据当前视频帧的变化特征值和前一个第一视频帧的改变特征值，当前视频帧的I帧阈值以及当前视频帧的I帧阈值来确定先前的第一视频帧是否是I帧 当前视频帧，先前第一视频帧的大小，以及之前的第二视频帧的大小。 本发明提供一种完整且有效的帧类型检测方法; 另外，视频帧速率的影响也被充分考虑。
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公开(公告)号：US20160380845A1
公开(公告)日：2016-12-29
申请号：US15258840
申请日：2016-09-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bing Chen , Qingpeng Xie , Lina Sun
CPC classification number: H04L41/5067 , H04L41/5038 , H04L65/80
Abstract: The present invention discloses a method for measuring user quality of experience QoE, where the method includes the following steps: receiving event information sent by a receiving end, where the event information includes condition information for determining a cause for shortage of valid media data in a buffer of the receiving end; determining, according to the condition information, whether the shortage of the valid media data in the buffer of the receiving end is caused by a service system or caused by a user's action; and measuring QoE decrease degrees according to different causes for the shortage of the valid media data in the buffer, respectively.
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公开(公告)号：US09419875B2
公开(公告)日：2016-08-16
申请号：US14331611
申请日：2014-07-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shan Gao , Lina Sun , Qingpeng Xie
CPC classification number: H04L43/0835 , H04N17/00 , H04N17/02
Abstract: A video quality assessment method and a video quality assessment apparatus are provided. The method includes: acquiring parameter information of video data, where the parameter information includes a bit rate, a frame rate, and packet information; performing calculation according to the bit rate or the frame rate to obtain benchmark video quality of the video data; calculating the number of successively lost packets according to the packet information, and calculating the number of effective packet loss times; performing calculation according to the number of effective packet loss times to obtain video packet loss and distortion quality of the video data; and performing calculation according to the benchmark video quality and the video packet loss and distortion quality to obtain final video quality. Using the number of effective packet loss times can accurately assess videos more effectively and reduce algorithm complexity.
Abstract translation: 提供视频质量评估方法和视频质量评估装置。 该方法包括：获取视频数据的参数信息，其中参数信息包括比特率，帧速率和分组信息; 根据比特率或帧速率进行计算，以获得视频数据的基准视频质量; 根据分组信息计算连续丢失分组数，计算有效分组丢失次数; 根据有效分组丢失次数进行计算，获得视频数据丢失和视频数据的失真质量; 并根据基准视频质量和视频分组丢失和失真质量进行计算，以获得最终的视频质量。 使用有效数据包丢失次数可以更有效地准确评估视频，降低算法复杂度。
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20.发明申请Method and Apparatus for Obtaining Video Quality Parameter, and Electronic Device 有权用于获取视频质量参数的方法和装置，以及电子装置公开(公告)号：US20140232878A1
公开(公告)日：2014-08-21
申请号：US14264978
申请日：2014-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lina Sun , Qingpeng Xie , Dong Li , Fuzheng Yang , Liang Zhou , Chang Huang
IPC: H04N17/00
CPC classification number: H04N17/00 , H04N17/004
Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.
Abstract translation: 本发明的实施例公开了一种用于获得视频质量参数和电子设备的方法和装置。 该方法包括将目标视频片段划分成至少一个视频子片段，其中每个视频子片段的持续时间至少被人眼看到的时间; 获取视频子段的视频质量参数; 并处理视频子段的视频质量参数，并获得目标视频段的视频质量参数。
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